2 Pcs 0.25W 16Ohm 23mm Dia Plastic Housing Magnet Speaker Loudspeaker Product Name : Magnet Speaker;Power : 0.25W/1/4W Resistance : 16Ohm;Type : External Magnetic Shape : Round;Size : 23 x 7mm / 0.9" x 0.28" (D*H) Color : Green;Material : Aluminum, Metal, Plastic,Magnet Weight : 10g;Package Content : 2 x External Magnet Speaker